CN104314795B - Apparatus for controlling pump, constant pressure speed-regulating control device, method and the micropump, water pump - Google Patents
Apparatus for controlling pump, constant pressure speed-regulating control device, method and the micropump, water pump Download PDFInfo
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- CN104314795B CN104314795B CN201410541957.7A CN201410541957A CN104314795B CN 104314795 B CN104314795 B CN 104314795B CN 201410541957 A CN201410541957 A CN 201410541957A CN 104314795 B CN104314795 B CN 104314795B
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Abstract
A kind of apparatus for controlling pump is provided, constant pressure speed-regulating control device, method and the micropump, water pump, the design replaces mechanical switch using single-chip microcomputer control power semiconductor, relay and contactor are substituted using controllable silicon or insulated gate bipolar transistor IGBT (Insulated Gate Bipolar Transistor), the pressure value fed back according to pressure sensor carries out real-time scale integral differential PID (Proportion Integration Differentiation) computing to motor in real time, calculate given power of motor, control the opening time of power device, control the time of given required energy, reach that energy-conservation and pressure are constant, the demand of water pump constant pressure water supply can particularly be met, it can in addition contain realize the realization of small size pump and micropump.
Description
Technical field
The present invention relates to pump control field, the water pump constant pressure more particularly in the constant pressure water supply of micropump and water pump etc. is adjusted
Speed control.
Background technology
Most of conventional controller is the break-make control of on-off mode, is relay or contactor, to electromechanical shock
It is very big, do not save, and also the output pressure of pump is extremely difficult to that pressure is constant, with the propulsion of energy-conserving and environment-protective, switch on and off mode
The demand constant to pump pressure not saved with people of the pump of control, relay and contactor control do not reach market application will
Ask.
Patent of invention content
For one or more problems above are there is provided a kind of apparatus for controlling pump, constant pressure speed-regulating control device, method and are somebody's turn to do
Micropump, water pump, the design replace mechanical switch using single-chip microcomputer control power semiconductor, double using controllable silicon or insulated gate
Bipolar transistor IGBT (Insulated Gate Bipolar Transistor) substitutes relay and contactor, according to pressure
The pressure value of sensor feedback carries out real-time scale integral differential PID (Proportion Integration to motor in real time
Differentiation) computing, calculates given power of motor, controls the opening time of power device, that is, controls given required
The time of energy, reach that energy-conservation and pressure are constant, particularly can meet the demand of water pump constant pressure water supply, it is small it can in addition contain realize
The realization of volume pump and micropump.
Technical solution of the present invention is as follows：
A kind of apparatus for controlling pump, including controller, controller include single-chip microcomputer, and single-chip microcomputer connects and controls power tube, control
Device switch processed uses controllable silicon or insulated gate bipolar transistor IGBT；
Control device includes input signal harvester, zero cross signal processing unit, pressure difference value processing unit, power tube
Output device, specifically：
Input signal harvester, connects pressure sensor and civil power respectively, and pressure sensor connection pump delivery outlet is described
Input signal harvester connection civil power, by electrically connecting realization with city mouthful by attenuator circuit by corresponding single-chip processor i/o；
Zero cross signal processing unit, the city's power information for receiving input signal harvester changes into zero cross signal, obtains
Zero time point；
Pressure difference value processing unit, calculates the error amount of current pressure and target constant pressure, is calculated by PID and obtains work(
Rate pipe opens duration and delivers it to power tube output device；
Power tube output device, power tube output device includes power tube, power tube output device connection motor, according to obtaining
The unlatching duration signal for obtaining power tube opens power tube, and inputs the time point of zero cross signal according to civil power, before zero point arriving
Open, terminate once to supplement energy temporarily in zero point.
A kind of micropump, using above-mentioned apparatus for controlling pump.
A kind of water pump, using above-mentioned apparatus for controlling pump.
A kind of pump constant pressure speed-regulating control device,
Single-chip microcomputer connects and controls power tube, and controller switches use controllable silicon or insulated gate bipolar transistor IGBT；
Control device also includes the single-chip microcomputer collection recoil simulator, pressure compensation arithmetic unit, power back-off being sequentially connected
Performs device, specifically：
Single-chip microcomputer gathers the pressure letter of recoil simulator, single-chip microcomputer collection civil power input zero cross signal and pressure sensor feedback
Number；
Pressure compensation arithmetic unit, first calculates the error amount of current pressure and target constant pressure, is calculated by PID
To the power tube opening time；
Power back-off performs device, including zero passage signal detection circuit, power tube control circuit, are collected according to single-chip microcomputer
Civil power zero cross signal and the power tube opening time after being calculated according to PID open power tube, city's electric flux is output to electricity
Machine so that motor speed can follow pressure change, power tube is opened before zero point is arrived, terminates once to mend temporarily in zero point
Fill energy.
A kind of micropump, using said pump constant pressure speed-regulating control device.
A kind of water pump, using said pump constant pressure speed-regulating control device.
A kind of constant pressure method for controlling speed regulation of pump, step is as follows：
The pressure signal of the first step, single-chip microcomputer collection civil power input zero cross signal and pressure sensor feedback；
Second step, first calculates the error amount of current pressure and target constant pressure, and obtaining power tube by PID calculating opens
Open the time；
3rd step, power back-off performs device, single-chip microcomputer connection power tube, controller switches use controllable silicon or insulated gate
Bipolar transistor IGBT, the civil power zero cross signal collected according to single-chip microcomputer and the power tube after being calculated according to PID are opened
Time opens power tube, city's electric flux is output into motor so that motor speed can follow pressure change, and power tube is in zero point
Opened before arriving, terminate once to supplement energy temporarily in zero point.
A kind of micropump, using said pump constant pressure method for controlling speed regulation.
Brief description of the drawings
Zero cross signal matches schematic diagram with the power tube opening time in Fig. 1 control devices of the present invention；
Zero passage signal detection circuit figure in Fig. 2 control devices of the present invention；
Power tube electric operation control circuit figure in Fig. 3 control devices of the present invention；
Fig. 4 constant pressure speed-regulating control device principle schematics of the present invention；
Fig. 5 control device principle schematics of the present invention.
Embodiment
Invention is further detailed in conjunction with drawings and examples：
A kind of apparatus for controlling pump, including controller, controller include single-chip microcomputer, and single-chip microcomputer connects and controls power tube, control
Device switch processed uses controllable silicon or insulated gate bipolar transistor IGBT.As shown in figure 5, control device is gathered including input signal
Device, zero cross signal processing unit, pressure difference value processing unit, power tube output device, specifically：Input signal collection dress
Put, pressure sensor and civil power, pressure sensor connection pump delivery outlet, described input signal harvester connection are connected respectively
Civil power, by electrically connecting realization with city by attenuator circuit by corresponding single-chip processor i/o mouthful；Zero cross signal processing unit, is received
City's power information of input signal harvester changes into zero cross signal, obtains the time point of zero passage；Pressure difference value processing unit, meter
The error amount of current pressure and target constant pressure is calculated, is calculated by PID and is obtained power tube unlatching duration and transmit the signal
Give power tube output device；Power tube output device, power tube output device includes power tube, power tube output device connection electricity
Machine, power tube is opened according to the unlatching duration signal for obtaining power tube, and inputs the time point of zero cross signal according to civil power, zero
Point is opened before arriving, and terminates once to supplement energy temporarily in zero point.
A kind of micropump, using above-mentioned apparatus for controlling pump.
A kind of water pump, using above-mentioned apparatus for controlling pump.
A kind of pump constant pressure speed-regulating control device, single-chip microcomputer connects and controls power tube, controller switches using controllable silicon or
Insulated gate bipolar transistor IGBT, as shown in figure 4, also including single-chip microcomputer collection recoil simulator, the pressure compensation being sequentially connected
Arithmetic unit, power back-off performs device, specifically：Single-chip microcomputer gathers recoil simulator, single-chip microcomputer collection civil power input zero passage letter
Number and pressure sensor feed back pressure signal；Pressure compensation arithmetic unit, first calculates current pressure and target constant pressure
Error amount, by PID calculate obtain the power tube opening time；Power back-off performs device, including zero passage signal detection circuit,
Power tube controls circuit, when the civil power zero cross signal collected according to single-chip microcomputer and the power tube after being calculated according to PID are opened
Between open power tube, city's electric flux is output to motor so that motor speed can follow pressure change, power tube comes in zero point
Face preceding unlatching, terminate once to supplement energy temporarily in zero point.Zero passage detection is the zero crossing for measuring AC signal, such as Fig. 1 institutes
Show that sinusoidal signal turns into square-wave signal after triode shaping, MCU detects zero crossing by detecting rising edge or trailing edge, had
Zero cross signal can be accurately controlled opening time of power tube, that is, control the energy needed for given motor.
A kind of micropump, using said pump constant pressure speed-regulating control device.
A kind of water pump, using said pump constant pressure speed-regulating control device.
A kind of constant pressure method for controlling speed regulation of pump, step is as follows：
The pressure signal of the first step, single-chip microcomputer collection civil power input zero cross signal and pressure sensor feedback；
Second step, first calculates the error amount of current pressure and target constant pressure, and obtaining power tube by PID calculating opens
Open the time；Wherein, PID control formula：Pout (t)=Kp*e (t)+Ki* Σ e (t)+Kd* (e (t)-e (t-1))
Three basic parameters：Kp, Ki, Kd are referred to as proportionality constant, integral constant and derivative constant
E (t) represents basic deviation value, is the difference that set target pressure value subtracts current measured pressure value.
Accumulated deviation value Σ (e), Σ (e)=e (t)+e (t-1)+e (t-2)+... e (1), is the deviation measured each time
The summation of value
Relative standard deviation values e (t)-e (t-1) of basic deviation value, the basic of last time is gone with this basic bias subtractive
Deviation
Output valve Pout (t), having just also has negative.
Opening time=10ms+ (10mS*Pout (t)), if the opening time is negative, close power tube output.
3rd step, power back-off performs device, single-chip microcomputer connection power tube, controller switches use controllable silicon or insulated gate
Bipolar transistor IGBT, the civil power zero cross signal collected according to single-chip microcomputer and the power tube after being calculated according to PID are opened
Time opens power tube, city's electric flux is output into motor so that motor speed can follow pressure change, and power tube is in zero point
Opened before arriving, terminate once to supplement energy temporarily in zero point.
A kind of micropump, using said pump constant pressure method for controlling speed regulation.
Finally it should be noted that:Above example is only to illustrate technical scheme rather than its limitations；Although with reference to compared with
Good embodiment is described in detail, those of ordinary skills in the art should understand that：Still can be to specific embodiment party
Formula is modified or some technical characteristics is carried out with spirit of the equivalent substitution without departing from scheme, and it all should cover please in this case
Ask among the technical scheme scope of protection.
Claims (8)
1. a kind of apparatus for controlling pump, including controller, it is characterised in that
Controller includes single-chip microcomputer, and single-chip microcomputer connects and controls power tube, and controller switches use controllable silicon or insulated gate bipolar
Transistor npn npn IGBT；
Control device includes input signal harvester, zero cross signal processing unit, pressure difference value processing unit, power tube output
Device, specifically：
Input signal harvester, connects pressure sensor and civil power respectively, and pressure sensor connects pump delivery outlet, and described is defeated
Enter signal pickup assembly connection civil power, by electrically connecting realization with city by attenuator circuit by corresponding single-chip processor i/o mouthful；
Zero cross signal processing unit, the city's power information for receiving input signal harvester changes into zero cross signal, obtains zero passage
Time point；
Pressure difference value processing unit, calculates the error amount of current pressure and target constant pressure, is calculated by PID and obtains power tube
Open duration and deliver it to power tube output device；
Power tube output device, power tube output device includes power tube, power tube output device connection motor, according to acquisition work(
The unlatching duration signal of rate pipe opens power tube, and inputs the time point of zero cross signal according to civil power, is opened before zero point is arrived,
Terminate once to supplement energy temporarily in zero point.
2. a kind of micropump, it is characterised in that using a kind of apparatus for controlling pump described in claim 1.
3. a kind of water pump, it is characterised in that using a kind of apparatus for controlling pump described in claim 1.
4. a kind of pump constant pressure speed-regulating control device, it is characterised in that
Single-chip microcomputer connects and controls power tube, and controller switches use controllable silicon or insulated gate bipolar transistor IGBT；
The single-chip microcomputer collection recoil simulator, pressure compensation arithmetic unit, power back-off that control device also includes being sequentially connected are performed
Device, specifically：
Single-chip microcomputer gathers the pressure signal of recoil simulator, single-chip microcomputer collection civil power input zero cross signal and pressure sensor feedback；
Pressure compensation arithmetic unit, first calculates the error amount of current pressure and target constant pressure, is calculated by PID and obtains work(
The rate pipe opening time；
Power back-off performs device, including zero passage signal detection circuit, power tube control circuit, the city collected according to single-chip microcomputer
Electric zero cross signal and the power tube opening time after being calculated according to PID open power tube, and city's electric flux is output into motor, made
Pressure change can be followed by obtaining motor speed, and power tube is opened before zero point is arrived, terminates once to supplement energy temporarily in zero point
Amount.
5. a kind of micropump, it is characterised in that using a kind of pump constant pressure speed-regulating control device described in claim 4.
6. a kind of water pump, it is characterised in that using a kind of pump constant pressure speed-regulating control device described in claim 4.
7. the constant pressure method for controlling speed regulation of a kind of pump, it is characterised in that step is as follows：
The pressure signal of the first step, single-chip microcomputer collection civil power input zero cross signal and pressure sensor feedback；
Second step, first calculates the error amount of current pressure and target constant pressure, when obtaining power tube unlatching by PID calculating
Between；
3rd step, power back-off performs device, single-chip microcomputer connection power tube, controller switches use controllable silicon or insulated gate bipolar
Transistor npn npn IGBT, the civil power zero cross signal collected according to single-chip microcomputer and the power tube opening time after being calculated according to PID
Power tube is opened, city's electric flux is output to motor so that motor speed can follow pressure change, power tube arrives in zero point
It is preceding to open, terminate once to supplement energy temporarily in zero point.
8. a kind of micropump, it is characterised in that using the pump constant pressure method for controlling speed regulation described in claim 7.
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| CN105065246B (en) * | 2015-08-30 | 2016-11-30 | 成都千里电子设备有限公司 | Circuit for air pump speed governing |
| CN108071598A (en) * | 2016-11-15 | 2018-05-25 | 北京中和天万泵业有限责任公司 | A kind of safety monitoring control system of oil field oil transfer pump |
| CN113864172B (en) * | 2021-09-17 | 2024-02-23 | 河南百昌源医疗科技有限公司 | Air pump pressure adjusting method |
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| RU2001310C1 (en) * | 1991-05-31 | 1993-10-15 | Научно-исследовательский и проектно-конструкторский институт по автоматизированному электроприводу в промышленности, сельском хоз йстве и на транспорте | Controllable electric drive |
| CN2178528Y (en) * | 1992-11-15 | 1994-10-05 | 张家平 | Computer spraying disinfection instrument |
| CN100348159C (en) * | 2004-08-25 | 2007-11-14 | 上海家宝医学保健科技有限公司 | Hystero cavity tissue aspirator |
| CN201269638Y (en) * | 2008-08-15 | 2009-07-08 | 浙江瑞德电子科技有限公司 | Instant heating type electric kettle controller |
| CN101603526A (en) * | 2009-07-09 | 2009-12-16 | 宁波速沸电子科技有限公司 | The flow control device of a kind of electromagnetic pump, electromagnetic pump and flow control method |
| CN202017608U (en) * | 2010-07-08 | 2011-10-26 | 漳州灿坤实业有限公司 | Water pump control circuit |
| CN203035511U (en) * | 2012-07-02 | 2013-07-03 | 江苏环力科技发展有限公司 | Frequency conversion electronic pressure control device |
| CN202965054U (en) * | 2012-11-21 | 2013-06-05 | 深圳市三艾科技有限公司 | Energy-saving driving device of injection molding machine |
| CN203770108U (en) * | 2013-12-31 | 2014-08-13 | 上海众辰电子科技有限公司 | Water pump control device for constant pressure water supply |
| CN203730275U (en) * | 2014-01-21 | 2014-07-23 | 西安金源电力设备有限公司 | Direct current accident oil pump control device |
| CN203815245U (en) * | 2014-04-03 | 2014-09-10 | 华南理工大学 | Control circuit of instant kettle |
| CN204140360U (en) * | 2014-10-14 | 2015-02-04 | 台州韩进泵业有限公司 | Apparatus for controlling pump, constant voltage speed governer and this micropump, water pump |
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Denomination of invention: Pump control device, constant pressure speed regulation control device, method, and micro pump and water pump Effective date of registration: 20231213 Granted publication date: 20170912 Pledgee: Wenling branch of the Industrial Commercial Bank of China Ltd. Pledgor: TAIZHOU HANJIN PUMP Co.,Ltd. Registration number: Y2023980070943 |